US4158082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated ferro-cement structures and method of fabrication
Assignee: Individual
•
Filing: 1977-07-27
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Granted: 1979-06-12
•
Expires: 1997-07-27
Abstract
Abstract Structures such as the shell of a boat are formed in a ferro-cement laminate composed of a fiber glass reinforced skin and ferro-cement with a coupling between the fiber glass layer and the ferro-cement that consists of fabric connector tapes that are bonded to the fiber glass and that have projecting wires which are secured to the armature wires of the ferro-cement. The structure is fabricated with the molding of the fiber glass skin with the connector tapes bonded thereto and the connector wires projecting therefrom. Thereafter, the ferro-cement armature is fitted within the molded shell and the connector wires secured thereto, and the cement is poured and shaped. An epoxy adhesive bonds wet cement to the cured fiber glass resin impregnant and armature wires and also fills any voids in the poured cement.
Inventors
- 👤 Bruce Belousofsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:50
CPC Classifications
B; B63; B63B; B63B5/00; B63B5/14; B63B5/18; B63B5/20; B63B5/24; Y; Y10; Y10S; Y10S264/00; Y10S264/57; Y10T; Y10T428/00; Y10T428/24; Y10T428/24008; Y10T428/24033; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31518; Y10T428/31522
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
133 words
A laminated shell structure comprising a resinous outercoat section; a reinforced cement section having a wire armature reinforcement and a layer of cementitious material formed on said armature reinforcement; and a plurality of coupling devices, each including a cloth sheet and at least one metallic fastening device having an elongated projecting portion extending through said armature and a transverse portion, said fastening device being secured by means of said transverse portion directly to said coupling cloth sheet; said coupling devices being connected to said outercoat and cement structure with said coupling cloth sheet bonded to said outercoat, said projecting portion secured to said wire armature at one side of said cloth sheet, and said transverse portion being secured between said cloth sheet and said outercoat at the other side of said cloth sheet.
Claim 2
Dependent Claim
133 words
A laminated shell structure comprising a resinous outercoat section; a reinforced cement section having a wire armature reinforcement and a layer of cementitious material formed on said armature reinforcement; and a plurality of coupling devices, each including a cloth sheet and at least one metallic fastening device having an elongated projecting portion extending through said armature and a transverse portion, said fastening device being secured by means of said transverse portion directly to said coupling cloth sheet; said coupling devices being connected to said outercoat and cement structure with said coupling cloth sheet bonded to said outercoat, said projecting portion secured to said wire armature at one side of said cloth sheet, and said transverse portion being secured between said cloth sheet and said outercoat at the other side of said cloth sheet.
Claim 3
Dependent Claim
37 words
A laminated shell structure as recited in claim 1, wherein said coupling cloth sheet is a reinforcement of said resinous outercoat section, whereby the outercoat section is an impact resistant surface for protecting said reinforced cement section.
Claim 4
Dependent Claim
23 words
A laminated shell structure as recited in claim 2, wherein said outercoat section includes a cloth reinforcement separate from said coupling cloth sheet.
Claim 5
Dependent Claim
28 words
A laminated shell structure as recited in claim 3, wherein said cloth sheet reinforcement and said coupling cloth are fiberglass, and said outercoat includes a fiberglass reinforced gel.
Claim 6
Dependent Claim
58 words
A laminated shell structure as recited in claim 1, wherein said coupling devices include spaced strips of fiberglass cloth sheet, and said fastening devices have the transverse portion thereof on the outercoat side of said cloth sheet and the projecting portion extending through said cloth sheet and projecting out at right angles from the cement section side thereof.
Claim 7
Dependent Claim
28 words
A laminated shell structure as recited in claim 5, wherein the projecting portion of said fastening devices include a plurality of projecting wires connected by said transverse portion.
Claim 8
Dependent Claim
21 words
A laminated shell structure as recited in claim 6, wherein said plurality of projecting wires are tied to said wire armature.
Claim 9
Dependent Claim
40 words
A laminated shell structure as recited in claim 5, wherein the projecting portion of said fastening devices includes first latching means and said coupling devices further include second mating latching means for securing said projecting portion to said wire armature.
Claim 10
Dependent Claim
26 words
A laminated shell structure as recited in claim 1, wherein said coupling devices further include an epoxy resinous interface between laminated outercoat and said cement structure.
Claim 11
Dependent Claim
33 words
A laminated shell structure as recited in claim 7, wherein said armature includes a plurality of layers of wire mesh, each of said layers being tied by different ones of said tying wires.
Claim 12
Dependent Claim
29 words
A laminated shell structure as recited in claim 10, wherein said armature includes structural rods located between said mesh layers and tied by different ones of said tying wires.
Claim 13
Dependent Claim
20 words
A laminated shell structure as recited in claim 1, wherein said shell structure is the hull of a marine vessel.
Claim 14
Dependent Claim
93 words
A ferro-cement molding process using a female mold comprising the steps of: applying a resinous layer to said mold along with a cloth reinforcement and curing said reinforced layer; applying coupling devices to said reinforced layer, which devices include lengths of cloth sheet having tying devices secured therethrough and projecting outwardly therefrom, and bonding said coupling cloth sheets to said reinforced layer; applying a metal armature reinforcement over said reinforced layer and projecting tying devices, and tying said devices firmly to said armature; applying cementitious material to said armature and curing said material.
Claim 15
Dependent Claim
93 words
A ferro-cement molding process using a female mold comprising the steps of: applying a resinous layer to said mold along with a cloth reinforcement and curing said reinforced layer; applying coupling devices to said reinforced layer, which devices include lengths of cloth sheet having tying devices secured therethrough and projecting outwardly therefrom, and bonding said coupling cloth sheets to said reinforced layer; applying a metal armature reinforcement over said reinforced layer and projecting tying devices, and tying said devices firmly to said armature; applying cementitious material to said armature and curing said material.
Claim 16
Dependent Claim
54 words
A ferro-cement molding process as recited in claim 13, wherein said applying of the metal armature includes setting wire mesh over said projecting devices, and said step of applying coupling devices includes spacing said projecting devices to be located at intersections of the wires of said mesh for tying said mesh at said intersections.
Claim 17
Dependent Claim
51 words
A ferro-cement molding process as recited in claim 13, wherein said step of applying cementitious material includes applying an epoxy resinous material to said armature reinforcement for lubrication thereof during application of said cementitious material and for thereafter bonding said cementitious material to said armature reinforcement and to said resinous layer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-11 | 1982-12-11 | 1983-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-11 | 1986-12-11 | 1987-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-11 | 1990-12-11 | 1991-06-12 | $7700.00 | Window Closed / Lapsed |